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TWI265679B - Interference-rejection coding method for an optical wireless communication system and the optical wireless communication system thereof - Google Patents

Interference-rejection coding method for an optical wireless communication system and the optical wireless communication system thereof

Info

Publication number
TWI265679B
TWI265679B TW094126565A TW94126565A TWI265679B TW I265679 B TWI265679 B TW I265679B TW 094126565 A TW094126565 A TW 094126565A TW 94126565 A TW94126565 A TW 94126565A TW I265679 B TWI265679 B TW I265679B
Authority
TW
Taiwan
Prior art keywords
wireless communication
communication system
optical wireless
coding method
interference
Prior art date
Application number
TW094126565A
Other languages
Chinese (zh)
Other versions
TW200644463A (en
Inventor
Yuan Chen
Frank Tsai
Yung-Hua Hung
Original Assignee
Ind Tech Res Inst
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ind Tech Res Inst filed Critical Ind Tech Res Inst
Application granted granted Critical
Publication of TWI265679B publication Critical patent/TWI265679B/en
Publication of TW200644463A publication Critical patent/TW200644463A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

An interference-rejection coding method for an optical wireless communication system and such an optical wireless communication system are provided. The coding method uses delay modulation, block code techniques and filtering to reduce the low frequency interference from light sources. A plurality of codewords from the block codes are reserved for performing digital data recovery. The invention removes the need of analog clock data recovery circuit, and does not require complex hardware for realization. Therefore, it can be applied to a wide range of applications, such as optical WLAN, data transmission of medical facilities, wireless communication in the aircraft, encrypted data transmission network, and low-priced transmission interfaces.
TW094126565A 2005-06-07 2005-08-04 Interference-rejection coding method for an optical wireless communication system and the optical wireless communication system thereof TWI265679B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/146,546 US7689132B2 (en) 2005-06-07 2005-06-07 Interference-rejection coding method for an optical wireless communication system and the optical wireless communication system thereof

Publications (2)

Publication Number Publication Date
TWI265679B true TWI265679B (en) 2006-11-01
TW200644463A TW200644463A (en) 2006-12-16

Family

ID=37494178

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094126565A TWI265679B (en) 2005-06-07 2005-08-04 Interference-rejection coding method for an optical wireless communication system and the optical wireless communication system thereof

Country Status (2)

Country Link
US (2) US7689132B2 (en)
TW (1) TWI265679B (en)

Cited By (1)

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TWI737076B (en) * 2019-12-12 2021-08-21 香港商吉達物聯科技股份有限公司 Differential encoding and decoding system for light communication, method

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI737076B (en) * 2019-12-12 2021-08-21 香港商吉達物聯科技股份有限公司 Differential encoding and decoding system for light communication, method

Also Published As

Publication number Publication date
US20060275039A1 (en) 2006-12-07
US20100074627A1 (en) 2010-03-25
US7689132B2 (en) 2010-03-30
TW200644463A (en) 2006-12-16

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